This hangar was experiencing failure of a recently installed epoxy flooring.
Proper flooring specifications are crucial for long term performance.
Moisture testing could have helped in avoiding this failure.
Modernization of schools usually require abatement of Asbestos Containing Materials. This process can often lead to failures of the replacement flooring.
Chemical migration is a result of high vapor emission rates and soluble compounds either from the raw materials used in the concrete itself, the sub-base or soil.
Sometimes while remodeling incompatible materials are used, which result in adverse chemical reactions.